What are Himalayan Salt Lamps?

A salt lamp is simply a chunk of mined salt that has been
hollowed out to allow room for a lightbulb or tiny candle. The light
glows through the medium of the salt crystal, which can range in color
from a dark salmon pink to a pale orange. Salt lamps make attractive
accent lights. Their main attraction, however, is that the heating of
the salt causes the crystal to release negative ions (often called
simply ‘ions’).Negative ions have long been considered healthy; the sea
air, mountain air and the air around swiftly running water is high in
negative ions. Indoor air, recirculated air, and air around electronic
equipment is very low in negative ions. Many office workers who suffer
health complaints around fluorescent lighting and computer monitors
report considerably less fatigue and headaches if the concentration of
negative ions in the air is increased.